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Altered Carbon shares very little in common with HBO's Game Of Thrones.

The former is a cyberpunk detective story set in a dystopian future. The latter is a gritty fantasy drama with dragons. In Altered Carbon, death is only a minor setback. In Game Of Thrones, a single lord's death can change the course of an entire war.

But the two shows do share one thing in common: Director Miguel Sapochnik who has directed episodes in both shows.

Whether through Sapochnik's influence or just as a fun way to pay tribute to Thrones, there's also a cleverly hidden Easter Egg in Altered Carbon's third episode (via reddit.) If you look at the stained glass windows in the image below, you'll spot a familiar seven-pointed star:

See those seven-pointed stars in the window?

Credit: Netflix

In Game Of Thrones, this is the symbol of the faith of the Seven. You can see it in places like the (former) Great Sept:

The Seven-Pointed Star

Credit: HBO

And for most of the show's run, it was also in the Red Keep's throne room:

The throne room in King's Landing's Red Keep.

Credit: HBO

In Dany's visions at the House of the Undying, she walks through the burnt out throne room and we see the star, one of the only things that remains intact in the hall:

Dany's vision.

Credit: HBO

In other words, it's an incredibly important symbol in Game of Thrones. But in Season 6, the Great Sept was destroyed and in Season 7 a bitter and vengeful Cersei has the star removed from the throne room, replacing it with the Lannister's own symbol of a lion:

The Lannister Lion has replaced the Red Keep's star.

Credit: HBO

This raises some big questions, such as:

Why does Dany have a vision that shows the Seven-Pointed Star in a burnt our Red Keep, if in the future Cersei changes it to a lion?

Is this just a continuity error on the part of the showrunners, or is there some deeper symbolism/meaning here?

Is the Altered Carbon star merely an Easter Egg, or does it signify something else?

That last one is an interesting question to ponder, but I'm not sure I have any satisfying answers. There could be some significance of this showing up on a church window after it's been removed from the Red Keep. Or it could be nothing at all. There are lots of little connections we can make here. Dany's vision is in the House of the Undying, for instance, and Altered Carbon is all about the undying. The star in Altered Carbon is on a church window, which is fitting but doesn't say much.

In any case, it's a cool Easter Egg. There's also a glimpse of Duncan's katana from Highlander in the final episode, which is also pretty fitting since that was another immortal struggle.

What do you think? Could this have any implications beyond just being a neat Easter Egg? Let me know on Twitter or Facebook.